January 2021 News, research and starcharts

[Edwin Rod]

Hi everyone

Please find this month’s newsletters and Starcharts attached.

There is no shortage of interesting papers this month. The highlights are the planets around Trappist-1 and TOI 178 two interesting systems with resonances. There are a range of interesting news items too.

It’s been a busy few weeks so I’ll leave you to look through the links and papers

Cheers Edwin

Research papers

The Role of Ultraviolet Photons in Circumstellar Astrochemistry
https://arxiv.org/abs/2012.14715

In Situ Geochronology for the Next Decade
https://arxiv.org/abs/2101.01131

Possible Atmospheric Diversity of Low Mass Exoplanets
https://arxiv.org/abs/2101.01277

Searching for Small Circumbinary Planets
https://arxiv.org/abs/2101.03186

The Copernican Principle Rules Out BLC1 as a Technological Radio Signal from the Alpha Centauri System
https://arxiv.org/abs/2101.04118


Around which stars can TESS detect Earth-like planets
https://arxiv.org/abs/2101.07898

Probing the capability of future direct imaging missions to spectrally constrain the frequency of Earth-like planets
https://arxiv.org/abs/2101.07378

Vertically resolved magma ocean-protoatmosphere evolution
https://arxiv.org/abs/2101.10991

Constraints on Planets in Nearby Young Moving Groups Detectable by High-Contrast Imaging and Gaia Astrometry
https://arxiv.org/abs/2101.11130

Complications in the ALMA Detection of Phosphine at Venus
https://arxiv.org/abs/2101.09831

Claimed detection of PH3 in the clouds of Venus is consistent with mesospheric SO2
https://arxiv.org/abs/2101.09837


The Extended Habitable Epoch of the Universe for Liquids Other than Water
https://arxiv.org/abs/2101.10341





Refining the transit timing and photometric analysis of TRAPPIST-1
https://arxiv.org/abs/2010.01074

Characterisation of the hydrospheres of TRAPPIST-1 planets
https://arxiv.org/abs/2101.08172

Super-Earths M Dwarfs and Photosynthetic Organisms Habitability in the Lab
https://arxiv.org/abs/2101.04448

Persistence of Flare-Driven Atmospheric Chemistry on Rocky Habitable Zone Worlds
https://arxiv.org/abs/2101.04507

Characterizing Atmospheres of Transiting Earth-like Exoplanets Orbiting M Dwarfs with James Webb Space Telescope
https://arxiv.org/abs/2101.04139


Oceanic Superrotation on Tidally Locked Planets
https://arxiv.org/abs/2101.11784



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Interesting News items

FORTHCOMING STAR PARTIES -



STARDATE – SOUTH ISLAND. Waitangi weekend, Fri 5th -Mon 8th February 2021. Staveley. Keep an eye on https://cas.org.nz/

STARDATE. Fri 12 and Sat 13 February 2021, at Stonehenge. Phoenix Astronomical Society. Contact secr...@astronomynz.org.nz


The Stars are Comforting
https://www.rnz.co.nz/concert/programmes/stars


Spectroscopy Can Offer New Details of Surface of Venus
http://spaceref.com/venus/six-wavelength-spectroscopy-can-offer-new-details-of-surface-of-venus.html

Some sensible points in here
https://undark.org/2021/01/18/astronomy-discoveries-fall-victim-to-hype/

Astronomers estimate Titan's largest sea is 1,000-feet deep
https://www.eurekalert.org/pub_releases/2021-01/cu-aet012021.php



Starlink Satellites Are Fainter Now — But Still Visible
https://skyandtelescope.org/astronomy-news/starlink-satellites-fainter-but-still-visible/

Beyond Starlink: The Satellite Saga Continues
https://skyandtelescope.org/astronomy-news/beyond-starlink-the-satellite-saga-continues/

CHEOPS finds unique planetary system
http://nccr-planets.ch/blog/2021/01/25/cheops-finds-unique-planetary-system/
http://spaceref.com/exoplanets/cheops-finds-a-unique-planetary-system.html


6 Things to Know About NASA’s Mars Helicopter on Its Way to Mars
https://www.jpl.nasa.gov/news/6-things-to-know-about-nasas-mars-helicopter-on-its-way-to-mars

Saturns Tilt
http://spaceref.com/saturn/saturns-tilt-is-caused-by-its-moons.html




The 7 Rocky TRAPPIST-1 Planets May Be Made of Similar Stuff
https://www.jpl.nasa.gov/news/the-7-rocky-trappist-1-planets-may-be-made-of-similar-stuff

TRAPPIST-1's 7 Rocky Planets May Be Made of Similar Stuff
https://www.unibe.ch/news/media_news/media_relations_e/media_releases/2021/media_releases_2021/trappist_1_s_7_rocky_planets_may_be_made_of_similar_stuff/index_eng.html

TRAPPIST-1: Seven Worlds of Similar Compostion
https://www.centauri-dreams.org/2021/01/26/trappist-1-seven-worlds-of-similar-compostion/


Mercury
http://spaceref.com/mercury/study-reveals-messenger-watched-a-meteoroid-strike-mercury.html

Astronomy/News/Photos are my main interests and more links can be found @

Astronomy in New Zealand - Groups.io

https://groups.io/g/AstronomyNZ

Thanks Edwin

(A Science/Space and general interest posting enthusiast)